Amortization of multifamily and tax on capital gains

[Alessandro Cardito]

I’m planning on buying a three family house- rent two units and live in the third.

I plan to depreciate the building to lower my tax burden on a yearly basis.

Assuming I live there for 3 years and then sell it I would not pay taxes on the capital gains from the sale - that seems to me like a winning strategy as I lower my tax burden on the rent and do not have to pay it when I sell...am I right or am I missing something?